...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of network and systems management >Modeling of Adaptive Load Balancing with Hybrid F/CDMA and Sectorization Schemes in Mobile Communication Networks
【24h】

Modeling of Adaptive Load Balancing with Hybrid F/CDMA and Sectorization Schemes in Mobile Communication Networks

机译：移动通信网络中混合F / CDMA自适应负载均衡建模和扇区划分方案

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, we investigate the load balancing problem in mobile communications by considering sectorization and a hybrid F/CDMA scheme (HFCS) jointly in the scenario of uneven traffic distributions. The problem is formulated as a combinatorial optimization model, subject to quality of service (QoS) requirements, and solved by the Lagrangean relaxation approach. In addition, Lagrangean multipliers are used to conduct sensitivity analysis. The model's objective is to minimize the weighted call blocking rate in terms of the distribution diversity. The model's performance is evaluated by the proposed HFCS, which is an adaptive scheme (AS). We compare the performance of AS with that of a non-adaptive (NA) scheme, which is a common power control method. Experiment results show that combining sectorization with the bandwidth segmentation scheme provides effective adaptive load balancing (ALB). The performance improvement achieved by the proposed adaptive scheme over the common power control scheme is as high as 68%. Moreover, under the scheme, the performance improves as the traffic load increases. Load balancing improves even further when AS is combined with the sectorization.
机译：在本文中，我们在流量分布不均的情况下，通过共同考虑扇区划分和混合F / CDMA方案（HFCS），研究了移动通信中的负载平衡问题。根据服务质量（QoS）要求，将该问题公式化为组合优化模型，并通过Lagrangean松弛方法解决。另外，拉格朗日乘数用于进行敏感性分析。该模型的目的是根据分布多样性来最小化加权呼叫阻止率。该模型的性能由提出的HFCS（一种自适应方案（AS））评估。我们将AS的性能与非自适应（NA）方案的性能进行比较，后者是一种常见的功率控制方法。实验结果表明，将扇区划分与带宽分段方案相结合可提供有效的自适应负载平衡（ALB）。与通用功率控制方案相比，所提出的自适应方案所实现的性能提高高达68％。而且，根据该方案，性能随着通信负载的增加而提高。当将AS与分区结合使用时，负载平衡将进一步提高。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号